Ryan D Houlgate

20070237520, Oct 11, 2007

Sep 1, 2006

11/515504

David A. DeLew - Rohnert Park CA, US
Ryan D. Houlgate - Windsor CA, US
Nathan D. Knuth - Sebastopol CA, US
Manic C. Steyn - Penngrove CA, US
Weijun Li - Rohnert Park CA, US

H04B 10/08
H04B 17/00

398 17

A method and corresponding apparatus is disclosed for determining a particular Optical Network Terminal (ONT) in a Passive Optical Network (PON) is malfunctioning by sending a continuous stream of light up a shared fiber, which results in adversely affecting communications between the ONT and an Optical Line Terminal (OLT). The example embodiment verifies the failure is due to a faulty optical transmitter in the ONT and not a different network fault, such as a fiber optic line cut or power outage. Through the use of the example embodiment, a service provider can determine in an automated manner which specific ONT of a PON is malfunctioning.

20090067832, Mar 12, 2009

Sep 10, 2007

11/852999

David A DeLew - Rohnert Park CA, US
Vinita Gupta - San Rafael CA, US
Robert S. Larvenz - Rohnert Park CA, US
Manie C. Steyn - Sebastopol CA, US
Ryan D. Houlgate - Windsor CA, US

Tellabs Petaluma, Inc. - Naperville IL

H04B 10/08

398 25

An apparatus and a method for verifying optical system performance using a signaling value test are disclosed. After instructing the first optical interface device and the second optical interface device to enter a verification mode, the first optical interface device sends first verification data to the second optical interface device via an optical communications network. In one embodiment, the first optical interface device is an optical line termination (“OLT”) and the second optical interface device is an optical network terminal (“ONT”). Upon composing the first reply message in response to content received by the second optical interface in accordance with the first verification data, the second optical interface device forwards the first reply message to the first optical interface device.